obama: "itts math. it's arithmatic."president obama either forcc $5 trillion uld - &pdollars in uts or add it to thh defiiit.a claim romney denis deniesobama would end the bush era tax cuts for those making 250-thousand doolars or more. he also wants to implleent rule', where millionaires pay a mmnimum 30 percent tax rates. all in aa effort to move toward a balanced budgett steven isberg, university off sse the calculation as to how both of those gentlemen are getting to that numberr and i havee't seen that yet." when it comes to dollars and cents-- the money youull be paying under either president obama or president romnny comes out to about the same. baltimmre: "at the end of the day, there's not a whole lot of differences between one and anotter."isberg says booh candidates need to be more specific about which changes in the tax code, iffany, ttey would makeesteeen isberg, university of baltimore: "what's the impact of this policy (romney's) on me. right now, i'm just llft to guess." guessing, voters are left to po th